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Abstract

New conceptions concerning blood are urgently needed in medicine, since the routine count of blood cells and the determination of the hemoglobin relate entirely to the concentration of the blood and are in no way related to the important problem of blood quantum. During the last fifteen years we have learned much from the accumulated evidence of studies of blood and plasma volume with the dye method. The results of these studies are now being assembled in monograph form. In this report, we shall present only a brief synopsis of some of our observations in this important but neglected field.